Taskbar Shuffle – No hotkeys, no extra steps, just rearrange the buttons on your Windows taskbar by dragging and dropping them. Allows you to rearrange your system tray icons by dragging and dropping as well.

Process Explorer – Shows a list of the currently active processes, including the names of their owning accounts, CPU usage, memory, and just about everything else you would want to know about them.

inSSIDer – WiFi Scanner to scan, inspect, measure, and improve wi-fi connectivity. Although a bit technical looking at first, inSSIDer can be used by anyone. The best use of this is to simply see what channel your wi-fi is using, and what channel other networks are using (your neighbors) to ensure they aren’t on the same channel.

Winsplit Revolution – WinSplit Revolution is a small utility which allows you to easily organize your open windows by tiling, resizing and positioning them to make the best use of your desktop real estate.